#banner {
  width: 1920rem;
  height: 959.04rem;
  position: relative;

  .imgBox {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    width: 100%;
    img,
    video {
      position: absolute;
      top: 0;
      left: 0;
      height: 100%;
      width: 100%;
      object-fit: fill;
      z-index: 1;
    }
  }

  .btnBox {
    width: 1029.65rem; /*{"name": "按钮总宽度"}*/
    height: 227.91rem;
    position: absolute;
    z-index: 2;
    top: 646.14rem; /*{"name": "按钮顶部距离"}*/
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    justify-content: space-between;

    button {
      position: relative;
      z-index: 3;
      width: 308.21rem; /*{"name": "按钮宽度"}*/
      height: 227.91rem; /*{"name": "按钮高度"}*/
      background: none;
      border: 0;
      a {
        height: 100%;
        width: 100%;
        position: relative;
        display: inline-block;
      }
      a:hover > img:nth-child(2) {
        display: flex;
      }
      img {
        position: absolute;
        top: 0;
        left: 0;
        height: 100%;
        width: 100%;
        z-index: 1;
      }

      img:nth-of-type(2) {
        display: none;
      }
    }
  }
}
